Fastening inserting machine



Mwah l, i932. F. c. EASTMAN 1,847,525

FASTENING INSRTING -.MACHINE original Filed Fb'. 2o, 1929 2 sheets-sheet 1 zzz :il ml I jr 3 :162 L @6 Fig. Z5 F U, E@

Masfch 1 1932. F. c. EAsTMAN FASTENING INSERTING MA'CHINE Original Filed Feb. 20, 1929 2 Sl'leetS-Sheeil 2 www Patented Mar. 1, 1932 UNITED/STATES PATENT OFFICE f.

j, FRED c. EASTMAN,

F BEVERLY, MASSACHUSETTS, ASSIGNOR `TO UNITED SHOE MA*- CHINEBJYY CORPORATION,l .OFV PATERSONV, `NEW JERSEY, A CORPORATION OFy NEW.-

JERSEY FASTENIVNG INSERTING MACHINE Application med rebruaryv'ao, 1929, seran im.` 341,432. ,Renewed Jane 26, 1931.

This invention relates to fastening inserting machines and isillustrated herein as em'` bodied in a machine arranged to sever fiber pegs from a strip of liber' material and to insert `the pegs in the sole yportions of shoes'.

It is often desirable that the lengths of pegs inserted to secure together'variou's parts of shoe bottoms be varied in accordance with the thickness of the different portions of the shoe bottoms into which they are. driven. This gives the pegs maximum holding power and insures` that they will not pull out,-even from thin insoles. lllhen `pegging von a last, as, for example, when pegging the heel seats caliper the thickness v.of a "shoe kbottom as might be doneif theY operation `were per-l formed olf the last. It has been proposed, however,as illustrated in my copending application for United States Letters Patent,l Serial No. 314,468, filed Oct. 23,1928, to utilize the awl of Aa peg insertingvmachine to measure the thickness of shoe bottoms, the mechanism which gives thev awl its work penetrating movement being arranged to per-v mit the awl to come to resty when it meets an excessiveresistance,.as when it strikes an impenetrable member back of the shoebot-v tom such as the -metal heel plate of a last.

It is an object of the'presentinvention tol provide improved means, applicable, for' eX- ample, to machines of the type used for heel seat nailing or pegging, by which the awl may come `to rest when it meets an excessive resistance, for example when it has passed through the shoe bottomy and strikesY the metal heel plate of a lastgonwhich the shoe is mounted. y

In the illustrated machine, and in accordance with a feature of the invention, operating means includes latch mechanism for transmitting work penetrating movement to the awl constructed and arranged lto slip when the awl meets an excessive resistance in its work penetrating movement, the arrangement being such that after the initial slipping of the latch mechanism the awl operating means ceases direction of its work penetrating movement. Thus the awl is operatively disconnected of Goodyear welt slices, it is impossible 'to th' W] e a in the condition which 1t assumes `after such to urge` the awl in the of thev awl stroke, it follows that with such a construction there is no danger of themachine severing and inserting pegs oftoo great a length -to be satisfactory forsecuring to-v gether the parts of the particularly shoe ,bote tom in which they are inserted.

lVhile the invention is illustratedy hereinas embodied in akfastening inserting machine particularly adapted to drive liberfpegs into the sole portions'of shoes, for example in heel seat pegging, it should be noted that the invention is not limited in its utility to such use or to embodiment in fastening inserting machines of the character illustrated.

lVith the above and other objects and fea'- tures `in view, the invention will now 'be described with reference ytothe accompanying drawings and point-ed out in the claims.

In the drawings,

Figyl-r is a side elevation of the head of' a p eg inserting machine embodying m'yinven tion; i i

Fig. 2 is a front-elevation of the head of the machine ofFig. l

vFig. 3 is a side elevation on a larger 'scale than Fig. l of a connection'including latch mechanism which transmits work penetrating movementto the awl of the machine and is arranged to slip when the awl meet-s an eX-` cessive resistance in its .work penerating movement, the latch mechanism being shown slipping; n y

Fig. 4 is a side elevation of the latch mechanismof Fig. 3 lshowing the latch members in the relative position which: they occupy when in power transmitting condition, for example before they slip;

Fig. 5 is a side elevation on a larger scale than Figs. 3 and 4 of one of the latch members-of Fig. 4 g

` end thereof is a machine looking in the opposite direction from Fig. 1.

The illustrated machine is of general type disclosed in Letters Patent of theUnitedl States N o. 1,030,775, granted June 25, 1912,

on an application liled in the name of George Goddu, though organized to insert liber pegs severed from a strip of fastening material such as paperjtwineinstead of loose nails. The machine Ymay advantageously be equipped'with a work support of the character disclosed infLetters Patent `of the United States No. 1,587,848, granted June 8, 1926, on an application filed in the name of F.A L. Mackenzie, the pressure relieving mechanism being modified, if desired, as shown in Figs. 23 and 24 of Letters Patent ofthe United Stateshlo. 1,686,808, granted October 9, 1928, on an application-'filed in the names of .George Goddu and F. L. Mackenzie. Reference may be had to these patents for a full disclosure of such parts of the machine as it is unnecessaryA to illustrate herein.

The illustrated machine is provided with a column 10 carrying a. head 12 on which are mounted the fastening inserting instrumentalities of the machine. The column 10 also carries a work support terminating in a last pin 14 (Figs. 1 and 8) arranged to support a work piece such asa shoe 16 mounted upon a last 18. with its sole 20 in engagement with a presser plate or abutment 22 carried by the head 12 of the machine. The shoe maybe positioned relatively to thev fastening inserting instrumentalities of themachine by a gage 24, which mayztake anysuitable form, also carried by the head 12 of the machine.

Mounted in suitable bearings carried. by the head 12 of the machine is a cam shaft 30 carrying a cam member32 provided with a series of cam grooves and surfaces arranged to operate the moving parts of the machine. Loose upon the-cam shaft 32 near the rear pulley 36 driven from any suitable source of power by 'abelt 37. Slidably'mounted on the shaft 30 is a clutch member 88 having a clutchsurface 40 arranged for movement into and out of drivingv relation with a clutch surface 42 formed on the pulley 36. The clutch member 38 is also provided with a brake surface 44 arranged for movement into and out of braking relation with a brake surface 46 carried by the head 12 of the machine. A 'spring 50 surrounding the shaft 30 tends to move the clutch member 38 into driving relation with the -pulley 36, but permits the clutch member 38 to be moved away from the pulley reference may be had to Letters Patent of the United States No. 1,030,775 referred toabove.

The machine-is provided with a driver bar 60 (Figs. 2 and 8) mounted for reciprocating movement in vertical ways carried by the head 12 adjacent to the forward end of the shaft 30. Clamped to the lower end of the driver bar 60 isa driver 62. The driver bar 60 is provided with a rack 64 (Fig. V8) meshing with a gear segment 66 formed upon thev end of a forwardly extending arm of a bell crank lever 68 fulcrumed at 70 to the head 12 of the machine and having a depending arm carrying at its lower end a roll positioned in a cam track 72 formed in the cam member 32.

An awl bar carrier'80 (best shown in Fig. 2) isk mounted for horizontal sliding movement atthe front of the head 12 of the machine and mounted for vertical sliding movement in ways formed in the awl bar carrier 80 isan awl bar 82 carrying' at its lower end an awl 84. The rear surface of the awl bar 82 is provided with ya rack 86 meshing with a gear segment 88 formed upon the forward end of a lever 90 fulcrumed at 92 to the head 12 of the machine and provided with a pair of rearwardly eX- tending arms 94 and 96 (Fig. 1).- The Yawl bar carrier 80 is reciprocated transversely of the machine by a lever 100 fulcrumed to the head 12 of the machine and carrying a roll 101 positioned in a cam groove formed 1n the rear surface ofa cam disk v102 secured to the lforward end of the shaft 30. i

'1 he arm 96 of the lever 90 is connected to a bell crank lever 104 (Fig. v1), fulcrumed at 106 tothe head 12 of the machine and carrying a cam roll positioned in a cam track 108 formed in the cam member 32, by connections shown in F igs.,1 and 2 and, on a larger scale, in Fig. 3. These connections comprise an inclined sleeve 110 pivoted on a short horizontal sleeve 112 (Fig. 6) which isitself carried by a pin 114 projecting from a plate 116 adjustably mounted in an undercut arcuate groove formed in the forwardly projecting arm of the bell crank lever 104. A nut 118 threaded on the end of the pin 114 prevents the escape of the sleeve 110 and at the same time servesto clamp the plate 116 and the pin 14 in adjustable `position relatively to the" bell crank lever 104. A slidable rod 120 telescopes in the bore of the sleeve 110 and carries at` its lower end a latch block 122 pivoted to the rear end of the lever arm 96, and having opposite side surfaces 124 slightly inclined relatively to the axis of the rod 120 and the sleeve 110, as best shown in Figs. 3 and4. v At the lower end of the block 122 are a pair'. of latch shoulders 126 inclined somewhat from the perpendicular relatively to .thesurfaces 124 and to the axis of the rod 120. and the sleeve 110. 1

Secured to the upper end of the sleeve 110 are a pair of latch membersconsisting of relatively s't-i leaf springs 128, the extreme lower ends of which are turned toward each other as best shown in Figs. 3 and4. Near their lower ends the latch members 128 are provide with inclined surfaces 130 (see Fig. 5), the inclination of which corresponds to that of the shoulders 126. The surfaces 131 ofthe latch members 128 between the inclined surfaces 130 and their extreme ends 131 are very slightly inclined relatively tothe axis of the rod 120 and the sleeve 110 so that when vthe surfaces 130 have slipped from the surfaces 126 of the latch block 122 the `latch members 128 can slide easily on the surfaces 124 ofthe block 122.

ln the illustrated construction the shoulder surfaces 126 of the latch block 122 are inclinedtwenty degrees from the perpendicular relatively to the axis of the rod 120 and thesleeve 110 as also are the surfaces 13() of the opposed latch members 128. The sur'- faces 124 of the latch block 122 areinclined at five degrees (5) to the' axis of the rod 120 and the sleeve 110.

A piece of hard fiber 132 is tween the top surface of the block 122 and below the end surface of the sleeve 110, serving to cushion the blow whenthese parts come together. In order to lubricate the various latch surfaces a piece of oilyv felt 134k is se cured by a sheet metal clip 136 and a screw 138 to the lower end of the block 122 adjacent to the llatch surfaces 126. Oil from-the felt 134 is picked up by the lower ends of tae' latch members 128 and is distributed by them over such portions of the latch block 124 as they come into Contact with it.

TWhen in the operation of the machinethe awl 84 strikes the metal bottomplate 110 of a last, on which is mounted a shoe, the latch members 128 slip relatively to the latch block 122 from the position shown in Fig. 4 to a position such as that shown in Fig. 3. The

distance which the latch members 128 and the sleeve 110 move relativelyY to the latch block 122 after the sliping takes place depends on the extent of the portion of the movement of the bell crank lever 104which takes place (in a clockwise directionas viewed in Fig. 1) after the awl 84 strikest-he metal bottom plate of the last. When, later in the cycle of operation of the machine, the bell crank lever 104 returns to the position which it occupied when the latch member slipped, the surfaces 130 of the opposed latch mem.- bers 138 will snap back over the shoulders 126, as shown in Fig. 4, and the lever will be rocked in a. clockwise direction vto withpositioned bedraw the awl-84 fromthe workpiece. Thus it will be seen ythat the extent of the downward movement of the awl 84 beneath the lowersurface of the presser plate 22 serves to measure `the thickness of the layers of the bottom of the shoe mounted upon the last 18. It may be desired to opera-tothe machine under conditions in which it is not necessary to measure the thickness of the work piece. For example, if the machine is to be used for slugging heels it is not necessary or desirable that the fastenings extend all the way through to the heel seat. Means are accordingly provided inthe illustrated machine operable to prevent the latch members 128 from slipping relatively to the latch block 122. his is best shown in Figs. 3 and 7. It comprises an invcrted T-shaped member 137 suspended from the upper end of the sleeve 110 and adjacent to the latch members 128.v T he left-hand end of the head of the as viewed in Fig'. 3, carries an adjustable eccentric 139 arranged when in one position to permit free movement of the latch members 128 relatively tothe il" member 137 and when in another position tovcooperate with a screw .143 ,threaded into ajlugV 145 carried by the right-hand end of the head of the lthereby clamping the latch members 128 so that they cannot spread apart as they must do to slip from the shoulders 126. Thus when it is desirable` to cause :the connections of Fig. 3 to act as a rigid link it is only necessary toyturn the eccentric 139 one hundred and eighty degrees (180) in a clockwise direction from the position shown in Fig. 3, the latch members being, of course. in the position shown in Fig. 4 when this is done. T he screw 143 may be clamped in adjusted position by a lock nut146. To facilitate the adjustment of the eccentric 139. it is provided with a squared portion 147 which may be conveniently received by a socket kwrench andwith pin 151 extending diametrically of theeccentric and arranged to engage` one or the other of a pairof stop surfaces 153 formed on the head of the T memberv137v Y Y Y The liber fastening material 140 from which the pegs inserted by the machine are severed is carried by a reel 142 (Fig. 8) mounted upon a bracket 144 secured to the head 12 of the machine. f The strip 14() of the liber fastening material is engaged by a feed dog 146 Fig. 2) of the feeding mechanism, which will present'- ly. he described, and past a spring pressed holding dog 148 designed to prevent retro'- grade movement of the fastening material, after which it enters a passageway 150 the lower end of which is inalinement with the driver passage of a forwardly and rearwardly reciprocable throat member 152 when the latter is in its rear-mostV position. Forward movement lof the throat member 152 thus serves to sever a peg from the fastening material 140 and the length of thispeg, as hereinafter described, is determined by theawl stroke, that is, by the. distance which the awl has penetrated the work piece before being brought to rest by striking the metal heel plate 110 of the last. The throat member 152 is carried by the forward end of a bar 154 (Fig. 8) mounted for forward and rearward movement in ways carried by the head 12 of the machine and provided near its rear end with a rack 156 engaging a gear segment 158 formed at the lower end of a lever 160 fulcrumed at 162 to the head 12 of the machine and provided with a roll positioned in a cam track 164 formed in the cam member 82.

The feed dog 146 (Fig. 2) is pivoted to the end of a pair of parallel links 170 pivoted at 172 to a pair of ears depending from a block 174 formed at the lower end of a tubular member 176 which forms a guide for the fastening material 140 and is mounted for reciprocating movement lengthwise of the strip of fastening material 140 in a slideway formed in a bracket 178 secured to the head 12 ofthe machine. The extent of the reciprocation of the 'block 174 will', of course,

determine the length of fastening material p fed. Accordingly, the machine is so organized that the reciprocation of the block 174 is controlled by the awl bar 82 and bears a deniterelation tothe distance which the awl is projected below the presser plate 22 of the machine in each cycle of 1 peration-v For this purpose, the block 174 is pivoted to a block 179 mounted in slide-ways formed at the forward end of a lever 180 fulcrumed at 182 to the head 12 of the machine and having a rearwardly and upwardly extending arm pivoted at 184 to the forward end of a link 186. The-link 186 is pivoted Yintermediate between its ends to the forward end of another link 188, the rear end of which is adi justably pivoted by a bolt and slot connection 190 to a lever 192 fulcrumed at 194 to the head 12 of the machine and provided with a rearwardly extending arm carrying a roll positioned in a 'cam track 196. As illustrated the lever 192 is effective also to transmit the presser relieving movement to the work support 14 which facilitates the feedingof the work, that movement being transmitted through a rod 198 to mechanism of the character disclosed in'Letters Patent of the United States No. 1,587 ,848, modified if desired as shown in Figs. 28 and 24 of Letters Patent of the United States No. 1,686,808.

At its rear end the link 186 is provided with a slide member positioned in an arcuate slot 200 formed in the upwardly and rearwardly extending end of a lever 202 fulcrumed at 204 t0 the head 12 of the machine and having a. forwardly extending arm provided with a gear segment 206 meshing with a gear segment 208 formed upon the arm 94 of the lever 90. Thus it will be seen that the lever 202' will be rocked through. an angle which is determined by the extent of the reciprocation of the awl bar 82.

'f The slot 200 has a radius of curvature equal to the effective length of the link 186, and the lever 202 is so positioned that the slot 200 is concentric with the pivot 184 between the lever 180 and the link 186 when the parts are in the position which they occupy when the entering end of the awl 84 is fiush with the lower surface of the presser pla-te 22. As the awl 84 descends below this position the lever 202 is rocked in a counterclockwise direction, as viewed in Fig. 8, the extent of this rocking movement depending upon the distance which the awl moves before itis stopped by impact with the metal plate 110 of the last 18. Thus the rocking,r movement of the lever 192, which is uniform in each cycle of operation of the machine, is varied as it is transmitted to the lever 180, the extent of the rocking movement of the lever 180 increasing with the increased eccentricity of the slot 200 relatively to the pivot 184 caused 'by an increased wol-k penetrating movement of the awl 84.

The bolt and slot connection 190 between the lever 192 and the link 188 permits the length of the fastening material fed to be increased a greater or lesser amount over the thickness of the work piece penetrated by the awl 84 so as to allow for the heading of vhe fastening which takesplace if the fastening is somewhat longer than the thickness of the work piece in which it is inserted.

In the operation of the machine, the last 18 upon which the shoe 16 is mounted is placed on the last pin 14 of the work support, the shoe being positioned by the gage 24 in the manner usual in performing the heel seat nailing operation. lVhen the machine is started the awl 84 punches a hole in the shoe, being thrust downwardly into the sole until its lower end comes substantially into contactwith the metal bottom plate 110 of the last. When the awl strikes the metal bottom plate of the last the surfaces 130 of the latch members 128 slip from .the surfaces 126 of the latch block 122 thereby permitting further movement of the bell crank lever 104 in a clockwise direction, as viewed in Fig. 1, while the awl 84 remains at rest.

The awl 84 is then moved transversely to the left, as viewed in FiCf. 2, feeding the work piece and bringing the awl into the line of drive. rlhe awl is then withdrawn and returned to the position which it occupied at the beginning of the cycle of operation. The work penetrating movement of the awl, which has just been described, is effective, through the connection between the awl bar 82 and the lever 202, to rock the lever 202 in a counter-clockwise direction, as viewed in Fig. 8, to a position which is determined by the thickness of the shoe bottom, thus controlling the angular relation between the link 186 von the one han'd'and the lever 202v distance equal to or, if desired, slightly more than the thickness of the lshoe bottom parts which the awl Spcnetrates. The fastening materials is then severed by the forward movement of tlie'throat member 152 and is brought forward into line withthev driver G2 which descends to drive the fastening into the hole formed by the .awl Se in the shoe bottom. `1 i Having thus described myiiivention, what l claim as new and desire to secure by Letters Patent of t-he United States is l. A fastening insertingvmachine having, in combination, an awl, means for reciprocating the awl to punch fastening receiving holes in a work piece presented thereto including connections constructed ,andy arranged to slip when the awl meets aii-eXces-y sive resistance in its work'penetrating movement thereby permitting the awl to come to rest, and a driver operated in timed relation to the awl to insert fastenings in the holes formed by the awl; i

2; In a fastening insertingmachine, the combination of an awl, means for operating the awl to make fastening receiving holes in a work piece presented thereto including connections constructed and arranged to Islip when the 'awl meets anv excessive resistance inV its work penetrating movement thereby operatively disengaging the awl from its`0perating mechanism, and means for moving the awl transversely of' its work penetrating movement to feed the work piece to fastening inserting position.

3. A fastening inserting machine having, in combinationr an aWLmeans for reciprocating the awl to punch fastening 4receiving holes in a work piece presented thereto, and a driver operating intimed relationito the awl to insert fastenings in the holes, the awl operating` means including` latchv mechanism for transmitting work penetrating movement` to the awl constructed'and arranged to slip when theawl meets an excessive resistance in its work penetrating movement.

el. ln a` fastening inserting machine, the combination of an awLineans for operating the awl to make fasteningreceiving holes in a work piece. presented thereto, and means fer moving the awl transversely of its work penetrating movement to feed the work piece to fastening inserting position, said operating` means including latch mechanism constructed an d arranged'to transmit work penetrating movement to the awl'and to ybecome disengagedl when l,the awl `meets an excessive resistance in its work penetrating movement. 5. In a fastening inserting machine,tlie

combination of an awland means for reciprocating the awly including latch mechanism for transmitting Work penetrating movement to the vawl constructed and arranged to slip when tlieawl meets an excessive resistance in its work penetrating movement, said latch mechanism being constructed and arranged to be reengaged later in the'cycle of operation to Causethe withdrawal of the awlfrom'the work piece.

G. A fastening inserting machineihaving,

-in combination, an awl, means for operating the awl to make fastening receiving holes in a work piece presentedthereto, and a driverl operating in timed relation to the awlto insert fastenings in the holes, the awl operating means including a pair of opposed latch members constructed and arrangedto trans# mit work penetrating movementfto the awl and arranged to slip when the awl. meets an excessive resistance in its work penetrating movement.

7. In a. fastening,inserting machine, theI combination of an awl and means for operating the awl to make fastening receiving holes inl a work piece presented thereto including latch mechanism for transmitting work penetrating movement to the awl constructed and' arranged te slipV when the awl meets an excessive Vresistance in its workpenetrating move` ment and to reengage later in the cycle of operation so that the awl is withdrawn from the rwork to permit the insertion of fastenings in the holes. Y i

8. A fastening inserting machine having, in combination, an awl, connections between the awl and the cam including a pair of 0p.

posed latch members cooperating Vwith another latch member positioned between them and arranged to slip when the `awl meets an excessive resistance in its work penetratingY movement thereby permitting the awl to come to rest, the lach members being reengagedY later'in the' cycle of operation to cause the withdrawal of the awl from the work, and

meaiisfor inserting fastenings in the holes formed by the awl.

9.1n` a fastening inserting machine, the

combination of an awl and means for operate ing the awl to make fastening receiving holes in a work piece presented thereto including a pair of opposed latch members cooperating witha latch member positioned between them to transmit work penetrating movement to the awl.

l0. In a fastening inserting machine, the, combination of an awl and means for operatin the awl to make fastening receiving holes in a work piece presented thereto including a pair of resilient latch members cooperating with a latch block positioned between them to transmit work penetrating movement to the awl and arranged to slip relatively to the latch block when the avvl meets an excessive resistance in its Work penetrating movement.

11. In a fastening inserting machine, the combination of an awl and meansfor transmittingWorl penetrating movement to the awl including a. pair of telescoping members, a pair of resilient latch members carried by one of the telescoping members, and a latch block carried by the other telescoping member and vcooperating with the resilient latch members to transmit Work penetrating movement to the avvl. Y

12. Ina fastening inserting machine, the combination of ana-Wl and means for transmitting Work penetrating movement to the aWl including a pair oftelescoping members, a pair of opposed one of the telescoping members, and a latch member carried by ,the other telescoping member and cooperating with the first-named latch members to transmit Work penetrating movement to the aWl, the latch members being` formed and arranged to slip when the avvl meets an excessive resistance in its Work penetrating movements.

13.` In a fastening inserting machine', the combination of an aWl, and means for operatingv the awl to make fastening receiving holes in a vrork piece presented thereto including a pair of telescoping members and latch mechanism connecting said members for transmitting Work penetrating movement to the aWl arranged to slip when the aWl meets an eX- cessive resistance ink its Work penetrating movement and to reengage later in the cycle of operation so that the awl is Withdrawn from the Work to permitthe insertion of a fastening in the hole.

lil. A fastening inserting machine having, in combination, an awl bar, an aWl carried thereon, a lever connected to the awl bar and arranged by its rocking to reciprocate the aWl bar, a cam, connections between the cam and the lever including a pair of opposed latch members cooperating With another latch member positioned between them and arranged to slip when the aWl meets an eXcessive resistance in its Work penetratin@r movement thereby permitting the awl to come to rest, the latch members being reengaged later in the cycle'of operation to cause the Withdrawal of the awl from the Work, and means for inserting fastenings in the holes former by the aWl. i

15. A connection for transmitting Work penetrating movement to the aWl of a fastening inserting machine comprising a pair of telescoping members, a block carried by one of the members,and a pair of stiff springs carried by the other member and having adjacent-to their free ends surfaces arranged to engage corresponding shoulders formed upon When the aivl latch members carried by` mitting the aWlto come to rest 'While the springs and the member to which they are attached continue their movement.

16.' A connection for transmitting Work penetrating movement to the avvl of a fastening inserting machine comprising a reciprocating sleeve, a rod slidably mounted in the sleeve and carrying a block beyond but adjacent to the sleeve, and a pair of stiff springs secured to the end of the sleeve remote from the block having, adjacent to their free ends, surfaces arranged to engage shoulders formed upon the block to transmit aWl reciprocating movement thereto but arranged to slip When the avvl meets an excessive resistance thereby permitting the awl to come to rest While the sleeve and the springs continue their movement.

17. In a fastening inserting machine, the combination of an aWl and means for reciprocating the awl constructed and arranged to cause the aWl to penetrate the bottom of a shoe on a last having an impenetrable bottom plate and to be Withdrawn therefrom, said means including a pair of stiff springs the end portions of which engage a latch block positioned between the springs thereby transmitting Work penetrating movement to the aWl, the end portions of the springs being formed and arranged to slip on the latch block When the awl hits said impenetrable plate and returning to latched position later in the cycle of operation so that the aWl is Withdrawn from the shoe bottom.

18. Ina fastening inserting machine, the combination of an aWl and means for reciprocating the aWl to cause the aWl to make fastening receivingr holes` in a Work piece presented thereto and to be Withdrawn there-y from including a reciprocable block connected to the aWl, a member reciprocated through a oath which is uniform in each cycle of operation of the machine, and a pair of opposed resilient members carried by said reciprocated member and having inturned end portions normally engaging and overlying a pair of shoulders upon said block, the contacting surfaces of the shoulders and of the resilient members being somewhat inclined from the perpendicular relatively to the direction of reciprocation of said block so that when the awl meets an excessive resistance in its Worli'` penetrating movement the resilient members will slip from the shoulders, thereby permit.- ting the aWl to come to rest'vvhile the resilient members and the parts which move them continue their cyclic movement.

19. In a fastening inserting machine, the combination of an atvl, means for reciprocating the aivl to cause the awl to make fastening receiving holes in a Work piece presented thereto and to be Withdrawn therefrom. means for moving the avvl substantially at right angles to its Work penetrating movement to cause the aWl to feed the Work piece cating means including a reciprocable block connected to the avvl, a member reciprocated through a path which is uniform in each cycle of operation of the machine and a pair of opposed resilient members carried by said reciprocated member and having inturned endportions normally engaging and overlying a pairl of shoulders upon said block, the contacting surfaces of the shouldersand of the ends of the resilient members being somewhat inclined from the perpendicular relatively to the direction of reciprocation of said block so that When'the aWl meets an excessive resistance in its Work penetrating movement the ends ofthe resilient members will slip from the shoulders, thereby permitting the aivl to come to rest While the resilient members and they parts which move them continue their cyclic movement. e

20. A connection for transmittingreciproeating movement ltothe arvl of a fastening inserting machine comprising a pair of reciprocable Jelescoping members, a block carried by a projecting end of one of the mer bers and having a pair of shoulders remote from the other member and inclined at a small angle to the perpendicular relatively to the direction of reciprocation of the tele- Y scoping members, and a pair of stiff springs extending substantially parallel to the telescoping members and carried by the member which does not carry the block, said springs terminating in inturned portions having surfaces arranged normally to'engage the inclined shoulders formed upon theblock and4 having a similar inclination, the surfaces of the block between the shoulders and the tele-I scoping members diverging slightly from the shoulders toward the telescoping members and the ends of thespringsbeyond the surfaces which co-operate with the shoulders being inclined at substantially the same angles as said divergmg surfaces lof the block.

21. A connection for transmitting reciprocating movement to the aivl of a fasteningL inserting machine comprising a reciprocatable sleeve, a rod slidably mounted in the sleeve and having one end projecting therefrom, a block carried by the projecting end of the rod and having a pair of shoulders remote from the sleeve and inclined relatively to the axis of the rod and the sleeve, and a pair of stiff springs secured to theend of the sleeve removed from the rod and eX- tending substantially parallel to the sleeve, said springs terminating in inturned portions having surfaces arranged normally to engage the inclined shoulders formed-upon the block and having a similar inclination, the surfaces of the block between the shoulders and the sleeve diverging slightly fromv the shoulders torvardthe sleeve and the ends of the springs beyond the surfaces which co-operate with the shoulders being inclined to the aXis of the sleeve at substantially the saine angle as said diverging surfaces of the block. 22. A fastening inserting machine having, in combination, an awl, meansfor operating the aWl to make fastening receiving .holes in a Work piece presented thereto includingconnections constructed and arranged to 'slip when the awl meetsan excessive resistance in its Work penetrating movement, a driver arranged to vinsert fastenings in the holes formed by the awvlfin the Work piece each of a length corresponding to the thickness of the work piece as measured by the awl at the point Where it is to be inserted, and means for moving the` awl transversely of its Work penetrating movement to feedethe Work piece to fastening inserting position.

223. A fastening Iinserting machine having,

`inicombination, an aivl, means for operating the aWl to make fastening receiving holes in a Work piece presented thereto Vincluding latch members constructed and arranged to transmit ivorkpenetrating movement-to the awl and to slip when the avvl meets an excessive resistance in its VWork penetrating movement, means for inserting in the `Work piece fastenings each of a length corresponding to the thickness of the Work piece as measured by the a-Wl at the point'ivhereit is to be inserted, and Vmeans for moving the aWl transversely of its work penetrating movement to feed the Workl piece tov fastening inserting position. 1

24. AA fastening inserting machine having, in combination, an awl, means for operating the aWl to make fasteningreceiving holes in a AWork piece 'presented thereto including al pair of opposed latch members co-operating With a latch member positioned between them to transmit Work penetrating movement to the and, said latch members being construct-- ed and arranged to slip when the aWl meets an excessive resistance in its Work penetrating movement whereby the avvl is effective to measure the thickness of the Work piece, and means for inserting in the holes formed by the aivl in the Work piece fastenings each of a length corresponding to the thickness of leo the Work aiece as measured by the aWl at the e thickness of the measure the thickness of the work piece, and means for inserting in the wor r piece fastenings each 'of a length corresponding. to the work piece as measured by the aivl at 26. A fastening inserting machine having, incombination, an awl, means for transmitting work penetrating movement to the awl including a pair of teiescoping members,

a pair of opposed latch members carried by one of the telescoping members, and a latchv member vcarried Aby the other telescoping member and co-operating with the firstnamed latch members, the latch .members being formed and arrange-:l to slip when the awl hits an 'impenetrable member back of the Work piece whereby the awl is eective to measurethe thicknessof the work piece, and

means for inserting in the work piece fastenings each of a lengthv corresponding to the thickness of thework piece as measuredV by the awl at the point where it is to be inserted. 27'. A fastening inserting machine having,

` in combination, an awl, means for transmit- M block carried by the other ber and located between the awl to a work piece presented thereto including a ting work penertating movement tothe awl including a pair of telescoping members, a pair of resilient latch vmembers carried by onefof the telescoping members, anda latch telescoping mem` and co-operating with the resilient latch members to transmit work penetrating movement to the awl but arranged to slip relativelyto the resilient Y latchmembers when the awl hits an impenetrable member back of the work piece whereby the awl is effective to measure the thickness of the work piece, and means for inserting in the work piece fastenings each of a `length corresponding to the thickness of the Awork piece as measured by points where it is to be inserted.

28. A fastening inserting-machine having,

in combinatien, an awl, means for operating make fastening receiving holes in pair of opposed latch members co-operating with a latch member positioned between them to transmit work impenetrablemember back of the work piece whereby the awly is effective tomeasure the thickness of the work piece, means for severing from a strip of fastening material a fastening of a length corresponding to the thickness of the work piece Aas measured by the awl, and means for driving said fastening into the work piece.

29. A fastening inserting` machine having, in combination, an awl, means for reciprocatingthe awl to make fastening receiving holes in a Werk piece presented thereto, a driver, means for moving the awl transversely of its work penetrating movement to feed the work piece into fastening inserting position, saidV the point where it is to be inserted..

awl at the.

penetrating movement ,toV Y the awl, said latch members being constructed and arranged to slipv when the awl hits an awl reciprocating means including latch mechanism constructed and arranged to transmit work penetrating movement to the awl and to become disengaged when the awl iits an impenetrable member back of the work piece whereby the awl is effective to measure the thickness of the work piece, means for severing from a strip of fastening material a fastening of a length corresponding to the thickness o f the work piece as measured by the awl, and means for operating the driver to insert the fastening in the hole formed by the awl in the work piece. l

30. A fastening inserting machine having, in combination, an awl, means for transmitting Work penetrating movement to the awl including a pair of teiescoping members, a pair of opposed latch'members carried by one of the telescoping members, and a latch member carri-ed by the vother telescoping member and co-operatinU with the first-named latch members to transmit work penetrating movement to the awl, the latch members being formed and arranged to slip when the awl hits an impenetrable member back of the Work piece whereby the awl is effective to measure the thickness of the work piece, means for Vsevering from a strip of fastening material a fastening of a length corresponding to the thickness of the work piece as measured by the awl, a driver, and means for operating the driver to drive said fastening into the hole formed by the awl in the work piece.

3l. A fastening inserting machine having, in combination, an awl, means for transmitting Work penetrating movement to the awl including a pair of telescoping members, a pair of resilient latch members carried by one of the telescoping members, and a latch block carried bythe other telescoping member and located between and fio-operating with the resilient latch members to transmit work penetrating movement to the awl but arranged to sliprelatively to the resilient latch members when the awl hits an impenetrable member ack of the work piece whereby the awl is effective to measure the thickness of the work piece, means for severing from a strip of fasening material fastenings each of a length corresponding to the thickness of the work piece as measured by the awl at the points where it is to be inserted,'and means for inserting the fastenings in the respective holes.

CII

arranged to slip on the latch block When the aWl hits said impenetrable bottom plate whereby the aWl is effective to measure the thickness of the shoe bot-tom, means for severing from a strip of fastening material fastenings each of a length corresponding to the measured thickness of the shoe bottom at the point Where it is to be inserted, and means for inserting the fastenings in the respective aivl holes.

33. A fastening inserting machine having, in combination, an aWl, means for reciprocating the awl constructed and arranged to cause the aWl to penetrate the bottom of a shoe on a last having an impenetrable bottom plate and to be Withdrawn therefrom, said means includinfr a pair of stif springs the end portions of which engage a latch member positioned between the spring thereby transmitting Work penetrating movement to the aivl, the end portions of the springs being formed and arranged to slip on the latch block when the aWl hits said impenetrable bottom plate whereby the aWl is effective to measure the thickness of the shoe bottom, means for severing from a strip of fastening material fastenings each of a length corresponding to the measured thickness of the shoe bottom at the point Where it is to be inserted, and means for inserting the fastenings in the respective avvl holes, the latch block and the pair of springs being returned to latched position relatively to each other after the measurement of the thickness of the shoe bottom whereby the aWl reciprocating means is rendered effective to Withdraw the awl from the shoe bottom.

34:. A fastening inserting machine having, in combination, an aWl, means for operating the aWl to make fastening receiving` holes in a Work piece presented thereto including means for operatively disconnecting the aWl from its operating mechanism whereby the aWl comes to rest When it meets an excessive resistance in its Work penetrating movement, and means operable to render said disconnecting means inoperative.

35. A fastening inserting machine having, in combination, an aWl, means for operating the awl to make fastening receiving holes in a Work piece presented thereto including latch mechanism for transmitting Work penetrating movement to the aWl constructed and arranged normally to slip when the avvl meets an excessive resistance in its Work penetrating movement, and means operable to prevent the latch mechanism from slipping.

36. A fastening inserting machine having, in combination, an awl, means for operating the a-Wl to make fastening receiving holes in a Work piece presented thereto including latch mechanism for transmitting Work penetrating movement to the aWl constructed and arranged normally to slip When the aWl meets an excessive resistance in its Work penetrating movement, and a clamp operable to prevent the latch mechanism from slipping. i

37. In a fastening inserting machine, the combination of an awl, means for operating the avvl to make fastening receiving holes in a Work piece presented thereto including a pair of opposed latch members co-operating With a latch member positioned between them to transmit Work penetrating movement to the aivl, said latch members being constructed and arranged normally to slip when the aWl meets an excessive resistance in its Work penetrating movement, and means operable to prevent slipping of the latch members.

38. A connection for transmitting Work penetrating movement to the aWl of `a fastening inserting machine comprising a pair of telescoping members, a block carried by one of the members, a pair of resilient latch members secured to the other telescoping member and having adjacent to theirv free ends surfaces arranged to engage correspond' ing shoulders formed upon the block but arranged normally to slip When the awl meets an excessive resistance thereby permitting the awl to come to rest While the latch members and the telescoping member by which they are carried continue their movement, and means operable to prevent the latch members from slipping upon the block.

39. A connect-ion for transmitting Work penetrating movement to the awl of a fastening inserting machine comprising a reciprocating sleeve, a rod slidably mounted in the sleeve and carrying a block beyond but adjacent to the sleeve, a pair of stiff springs secured to the end of the sleeve remote from the block having, adjacent to their free ends, surfaces arranged to enga-ge shoulders formed upon the block to transmit aWl reciprocating movement thereto but arranged normally to slip When t-he awl meets an excessive resistance thereby permitting the aWl to come to rest While the sleeve and the springs continue their movement, and means operable to prevent the springs from slipping upon the block.

In testimony whereof I have signed my name to this specification.

FRED C. EASTMAN. 

